Can-closing machine



P. w. FLEISCHER. CAN CLOSING MACHINE.

CAN CLOSING MACHINE.

APPLICATION FILED DEC. I, I9I5.

1,429,23 1, Patenteasem. I9;I922

atto/21u36 P. W. FLEISCHER.

CAN CLOSING MACHINE.

APPLICATION FILED DEC. I, I9I5.

1,429,231, l Patentedsepf. 19,1922..

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CAN CLOSING MACHINE.

l APPLICATION FILED DEC. I, I9I5.v

Patented sept. 19,19'22 13 SHEETS-SHEET 4.

Paul WF'lw'sc/zer P. W. FLEISCHER. l GAN CLOSING MACHINE. APPLICATIONFILED DEC.1. 1915.

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CAN CLOSING MACHINE,-

APFLICATION FILED DE01', 1915.

Patented Sept. 19, 1922.,

13 SHEETS-SHEET 6.

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I nvm/101: Paul WFZez'sch er `I. w. FLEISCIIEIII CAN CLOSING MACHINE.

APPLICATION FILED DEC. I, H215.

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CAN CLQSING MACHINE. APPLICATION man Dac. 1. 1915.

Paul WFleischer kwa/a7. @ruw/m l P. WI FLESCHER.

CAN CLOSING MACHINE.

APPLICATION FILED DEc.1. 1915.

mma sept. 19,1921

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Paul WF'Zefc/z er' wz am.. mm SHO: neus P. w. FLEISCHER.

CAN CLOSING MACHINE. APPLICATION man DEC. 1. 1-915.

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atroz aus Patented Sept. I9, 1922'.

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P. w. FLElsCI-IER. CAN CLOSING MACHINE.

AP'PLICATION FILED DEC.1 I9I5.

P. W. FLEISCHER.

GAN CLOSING MACHINE..

APPLICATION man 135011915.

P. w. EILEISCHER.

CAN CLOSING MACHINE. l APPLICATION FILED DEC. I. 1915* 1 d 1,429,231Patil/mitmSept. 19, 13VSHEETSTSHEE'I' I3.

Patented Sept. 19, 1922.

UNITED STATES raars raient' erstes.

PAUL W. FLEISCHER, OIF NEW YORK, N. Y., ASSIGNOR TO AMERICAN CANCOMPANY, A CORPORATION OF NEW JERSEY.

CAN-CLOSNG MACHINE.

Application filed December l, 13115.

ful Improvement in Can-Closing Machines,

of which the following is a specilication.

The invention relates to can closlng machines, comprising can conveyingand feedl0 ing devices, cam end feeding devices, mechanism for centeringthe can and seaining thereto the automatically applied ends, can endmarking devices, safety devices for preventing breakage or injury tovarious parts of the machine in casea can or other part should be jammedtherein, and power mechanism operatively connected witn une varioussubsidiary mechanisms for the proper and timely action of the same. Theinvention relates more particularly to improvements in the saidmechanisms and devices and in various parts of the machine, includingall matters of noveltyl and advantage and usefulness which. are inherentin the construction hereinafter set forth.

The invention consists in the various parts and combinations thereof,hereinafter set forth and claimed. i

In order to make the invention more clearly understood there is shown inthe accompanying drawing means for carrying the same into practicaleffect, without limiting the improvements, in their useful applications,to the particular construction which,

for the purpose of example, has been illustrated. ln said drawings- Fig.l is a front elevation, partly in vertical section, of a can closingmachine embodying the invention.

Fig. 2 is an elevation of the same looking towards vthe right hand ordelivery end of the machine. certain parts being broken away to betterdisplay the mechanism.

Fig. Quvis an elevation of the parts omit-l rted from the right handupper portion of 2. i l

' Fig. 3 is a rear elevation of the same, a portion of the frame orcasing being broken away.

.f Fig. Llis aplan view of the sametaken above the main or feed table,certain parts being shown in horizontal section..

Fig. 5 is a perspective view of the upper portion `of the can lifter orbottom plunger or chuck.

Serial No. 64,494.

Fig. Gis a plan view of the devices for tightening the can feed orconveying chain.

Fig.` 7 is a plan view, on a larger scale of the right hand end of themain table, showing portions of the can feeding and can end feedingmechanisms.

Fig. 8 is a perspective view of the trip lever and some of theconnecting parts, Wherebythe can is enabled to automatically control thefeed of the can ends.

Fig. 9 is a vertical section on line IX-IX of Fig. 7, showing portionsof the can feeding, can end feeding and seaining mechanisms. l

F ig. l() is a vertical section on line of Fig. ll, illustrating moreparticularly the can end feeding mechanism,

Fig. ll is a plan view of parts at the right hand end of the machine,more particularly illustrating f- 'the same mechanism, Figs. l0 and llbeing in scale about oneth-ird-of full size.

Fig. 1la is a detail in rear elevation of parts-shown in Fig. 1l.

Fig. l2 is an elevation, partly in section, looking from lthe right handend of the machine, and illustrating more particularly the can endfeeding and marking devices.

Fig. 13 is a detail elevation, looking from the front of the machine, ofcertain of the parts shown in Fig. l2.

Fig.` 11i-is a perspective view of a portion of the marking devices.

Fig. 15 isa vertical section of the same.

Fig. 16 isl a vertical sectionof the seamingy i head and mechanism.

Fig. 17 is an elevation of the same, looking from the right hand end ofthe machine. i

Fig. 18 is a bottom plan view of the seeming head.

Fig.` 19 is a horizontal section on a plane just above the-adjustingslide of the scaming rolls.

Fig. 20 is anelevation, partly in section, on lin-e` XX--XX of Fig. 2l,on a larger scale, of aportion of the seeming head.

Fig. 2l is an elevation looking towards the left hand sidey ofl Fig.V2O.`

Fig. 22 ris a` horizontal section on line .XXII XXII ofl Fig. 20.

Fig. 23 is a horizontal section illustrating the transmission gearingcomprised in the can feeding mechanism.

Fig.` Z4 is a horizontal section, on a larger lso scale, on line XXI-XXlV of Fig. 3, showing the seaming head actuating gearing.

Fig. 25 is a verticalsection, o n a larger scale, on line XXV-XXV ofFig4 Fig. 26 is an elevation of the top portion of the machine, lookingfrom lthe receiving end of the` same, illustrating the power mechanismand cam actuating means.

Fig. 2T is a top vplan view of the saine.

Fig. 28 is a frontelevation of the same, showingalso the seaming head..

.Fig 29 is a vertical section looking from the back of the machine, of aportion of the gear casing of the machineN showing the seaming headgearing and safety slip joint therein.

Fig. 30 is a similar view,r`showing in .section also the vertical camshaft.

Fig. 31 is an elevation partly in section,

`looking towards the vdelivery end of the machine,' showing the feedchain adjusting means.

Fig. 32 same.

Fig. 33' is a horizontal section on line XXXIII- XXXIII of Fig. l3,2.

Fig. 34 is a bottom plan view of thesafety slip sleeve shown in Figs. 29and 30.

Fig. 35 is a vertical section on line XXXV of Fig. 34. 4lileferring tothe drawings, the main ined framework of the machine is indicatedat 1.rllhe filled cans without tops are fed either by hand or automaticallyupon a rotating receiving and feed table 2. This table overlaps then'iargin of a second rotating table 55, which may be called the canspacing table, and which is supported by a bracket lof the frame 1, andfrictionally drives thel table 2. The frictional engagement between thetwo tables is effected as follows: Beneath the feed table 2 is afriction ring 5. which is supJ ported upon a plurality of coiled springs6. These springs are in turn supported bya coris a lvertical centralsection of the y responding number of guide pins 7 .which are fixed inand project downwardly from the table 2 and loosely through apertures 8in the friction ring 5. The friction ring is thus yieldahly held againstthe under side of the can spacing table 3 with sufficient friction sothatthe motion of the latter will be communicated to the feed. table inanopposite direction to facilitate the vtransfer of cans from one tableto the other.`

rlhe feed table v2 is supported and adjust# able around the can spacing.table 3 by a swinging arm 9 mounted upon a fixed hub surrounding theshaft 1() ofthe said spacing table This arm 9 carries at its outer end,ya stud shaft 11 which is adjustably heldin the arm by a set screw 12 andupon the upper end of which the receiving table 2 may rotate. vMountedupon the upper endet the stud shaft 11 and above thereceiving table is astationary disk 13, which serves to keep the cans upon the outer vmarginof the receiving table 2. rlllhe disk 13 is'adjustably held. in place onthe shaft l1 by a set screw 14; and carriesan arm. 15 which engages thecans as the table 2 rotates about the shaft 11 and deilects them ontothe can spacing table 3 at the desired point.

Located in the center of the can spacing table 3 is a housing 16 whichrotates with the said table 3, and in which are radially slidablymounted a plurality of can spacing shoes 17, which are yieldably pressedoutwardly by coiled springs 1S. As the cans are deliveredl from thereceiving table 2 upon the can spacing table 3, and are carried'aroundby the saine9 they are caught between the shoes 17 and a fixed arcuateguide rail 19 mounted on the bracket 4l and. adjacent the outer marginof the said spacing table. if the cans' so caught do not immediatelyregisterwith the spaces between the shoes 1i', they willbe rolled alongthe rail 19 by the said shoes until they register with and work intosuch spaces. The cans will then be carried around the table 3 in spacedpositions proper for suc-cessive and timed delivery to the furtherVfeeding` devices. i i

When the cans have traveled about one half a revolution'of the table 3,they engage a second deflecting guide rail 20 which projects outwardlyfrom the main fixed. table 2l of thel machine and across the path of themoving cans. lllhen the cans encounter the rail ,20 their coui'se is sodeflected as to de-` liver them successively between the us of arotating star wheel 22 which delivers the cans from the can spacingtable 3 on to the main table 21.

lhe star wheel '22v is adjustably mounted, the reason for which will beexplainefil later, abolita vertical hollow shaft`23 which projectsdownwardly there romand carries near the lower end thereof a gear wheel2li., ThisI gear wheel is o; of ay train of e'ears by which feed tables2 andi-3 are rotate l? .is hereinafter set forth. ldli'dably mountedupon the upper end of the hollow shaft 2 by means ofl a- .'A) featherkey is a topper ca This plurality of er 2G.

topper carrier is provideV wi .h vertical` bearings 2T corresponding inniunher to the arms of the star. wheel 22 and cach of which has .mountedtherein a vertically sliding plunger rod 2S. The plunger rods 28 areprovided at their lower ends with topping disks 29 which partly enterthe cans and serve to press down-their contents and dis. place surpluscontents as they are conveyed on the table 2l beneath the topper by thestar wheel 22. yThe plunger rods`28 further l' provided, at their upperends, witnfrollers 30 which engage a stationary topper cam 31 which iskeyed to the upper end cf a nonrotating shaft 82 mounted withinthehollow sha-ft 23. i

The high part 33 of the cam 31 is at the point where the topping of thecans is to be effected as they are carried by the star wheel 22, and thelow part 31l is at the opposite side of the cam. As the topper carrier26 ro tates with the star wheel it causes the rollers 30 to travel aboutthe stationary cam 3l and as the rollers approach the part 33 of thecam, they will cause the plunger rods 23 and the topping disks 29 todescend successively and press down upon the contents of the cans asthey are conveyed beneath at the same speed by the star wheel 22. ,lhisinsures that the cans shall be iiiniformly filled and the closingoperation will not be'interfered with. its the cans continue theircourse7 under the action. of the star wheel 22 the engagement by therollers 30 with the part 3st of the cam 3l causes the plunger rods 28and their topping disks to rise from within and out of contact with thecans.

The shaft 32 extends downwardly through the hollow shaft 23 and isadjustably supported at its lower end by an adjusting nut 35 which restsupon a bearing 35 carried by a. bracket 36 secured tothe base 36 of themachine frame l. This adjusting nut has fixed thereon a hand wheel 37 bywhich the same may be easily operated, to regulate the topper to itsproper height above the cans, according to the vertical dimension of thecans on which the machine is to operate. Threaded upon the shaft 32 andadjacent the adjusting nut 35 is a lock nut 37 which serves to securethe said adjusting nut upon the shaft 32 in its desired position. Theshaft 32 is prevented from rotation but permitted to slide vertically inthe bearing 35 by means of a feather key 38 F ig. l) secured in thelatter. ln order that the topping device may be thrown upward andentirely out of operative position with respect to thev cans, withoutchanging its operative adjustment, there is provided near the lower endof the shaft 32 a hand lever 39 which is pivotally mounted upon thebracket 36 as indicated at40. This lever 39 is provided with an arcuateshoe ll which engages a peripheral groove 42 in the hub 4:3 of the handadjusting nut 35. l/Vhen the lever 39 is raised it will cause the shoeil mounted thereon to lift the adjusting nut 35 and the vertical shaft32, which in turn will raise the topping device as a whole away from thecans, leaving' the star wheel 22 in operating position.

In Aorder that the topping device may be securely held in either theoperative or inoperative position there is provided a spring controlledpin le which is mounted in the lever 39 and may engage either ofapertures 45, 46, as the case may be, in the bracket 36, thus positivelylocking the topper in its lower or upper position.

It is at times necessary to set the star wheel 22 backwards or forwardsabout its shaft relative to the point at which the cans are topped toaccommodate cans of a greater or less diameter and to insure that thecans will bc properly centered beneath the plungers of the tcppinmechanism. To

vto be perpendicularly u nder the topping` disk at the point of topping'by the use of suitable can-guiding rails l2. 20 and 54. 49 is a springguide forming' with one of the rails i a yielding throat into which thecans are forced by the star wheel and which holds firm and steadies thecans as they are delivered from the star wheel to the feed chain, sothat they are not jarred or their contents spilled thcy enter betweenthe rails and are jjiififked up by the chain. lvlounted near the ends ofthe main table 2l are two sprocket wheels, drive sprocket 50 and adriven sprocket 5l7 which carry a sprocket chain This Chaim which willhe referred to as the feed chain7 carries at spaced intervals. aplurality of upwardly projecting can fm l lingers 53 having theircan-engagfig faces inclined or equivalently shaped, which the canssuccessively 'as they are delivered on to the table 2l by the starwheel. 22 and which carry them along the table. between guide rails 54re .ed thereomto the seeming station.

The drive sprocket wheel 50 is fixed on a shaft 55 which entendsvertically downward and carries nearthe lower end thereof a drivensprocket wheel 56. This sprocket is driven by a sprocket chain 57 whichentends rearwardly and around a sprocket pinion on the vertical camshaft 59 of the closing machine. The sprocket chain 57 is maintained ata j iroper working tension by means of an adjustable idler 57. Thisidler cooperates, in adjusti'nent, with the feed chain adjlistingvmechanism hereinafter described, to bring the cans to the proper pointsat the times when the other mechanisms? which are actuzfited by the canishaft 59, operates. The sjgiroeket wheel 5G is supported by two bolts(3() which pass through two diamctrically opposed concentric slots (ilin the hub (S2 ofthe said sprocket wheel 53 and which are screwed intocollar (53 of a sleeve l which is keyed to the sprocketl snaft 55.Extending horizontally through the hub 62 of the sprocket wheel are twoparallel adjusting screws65 which abut two shruilders (it inthe sleeveGt. When it is desired to set the conveyor chain-52 backward. or forwardto accommodate cans of a larger or `smaller diameter and to insure aproper delivery of the same accurately under the seaming head, it isnecessary to iirst loosen the two binding bolts 60. The two adjustingscrews 65 may then be operated. For example, suppose that it is desiredthat the conveyor chain 52 be set forward to accommodate cans of asmaller diameter. By first loosening the bolts 60 and then loosening theleft hand screw (Fig. 33) and tightening the right hand one the sleeve64 will thereby be rotated counter clockwise and the shaft 55 beingkeyed there to, will also be turned in the same direction relative tothe sprocket 56. rThis will cause the conveyor chain drive sprocket 50to turn in the same direction causing the conveying limb of the chain 52to be advanced. In adjusting the conveyor chain for cans of a largerdiameter the operation is the reverse. `When the conveyor chain has beenmoved the proper distance to accommodate cans of a different diameter,the two locking bolts 60 are tightened thereby binding the sprocketwheel 56 against the collar 68 of the sleeve 64 and causing them toagain rotate as one.

In order that the exact distance that the conveyor chain 52 should bemoved for adjustment may be easily ascertained, there is provided on theouter face of the collar 63 of the sleeve 64 a graduated sca-le 67.Secured to the hub 62 of the sprocket wheel 56 is an indicator 68 whichmoves across the said scale when the adjusting screws 65 are operated.

The driven feed chain sprocket wheel 51 is 'fixed on a shaft 69 6) whichis journaled in a bearing 70 located at one end of an arm 71 of a chaintightening lever 72. rllhis lever is pivotally mounted at its center, asindicated at 7 3, upon the bracket 4 of the machine and below the feedtable 21. The other arm 74 of this lever bears against an adjusting`screw 75 mounted in a lug 76 integral with the bracket 4. At the outerend 'of the sprocket bearing 70 is an arcuate slot 77 through whichpasses a cap screw 78. This cap screw is 'threaded into the bracket 4and locks the sprocket wheel bearing 7 0 to the bracket 4 after thetension of the chain has been regulated by means of the adjust ing screw75.

The sprocket wheel sha-ft 69 projects downwardly through an elongatedaperture 79 in the bracket 4 and has keyed thereto at its lower end agear wheel 80. This gear wheel meshes with and drives an idler pinion 81mounted upon a shaft 'or pivot 81 at the under side of the bracket 4,which pinion meshes with a second idler 82 and the y latter in turndrives a larger gear wheel 24 clamped to the hollow shaft 23 thatcarries the star wheel 22 and the topper carrier 26. Y

The gear wheel 24 in turn drives a still larger gear wheel 83 clamped tothe shaft 10 of the can spacing table 3. The movements of the table 3and of thetopping device vheretofore described are thus effected fromthe feed chain by this train of gearing.

Located about midway on the table 21, and in the path of the cans asthey are advanced by the feed chain is a can lifter or bottom plungerindicated as a whole at 84. The head 85 of this can lifter is slottedvertically as at 86, to permit the passage of the conveying chain 52through the head and at the same time to allow the upward and downwardmovement of the head as it lifts the cans from. the table to a seaminghead 87. Secured to the base of the can lifting head 85 is a plunger rod88 which is carried by a can lifter sleeve 89. Formed preferablyintegral with this sleeve and located about the middle thereof is ahousing 90 in which is arranged a compression spring 91 which yieldablysupports the plunger rod 88. This spring is supported and its tensionregulated by an adjusting screw 92 threaded into the lower part of theh'ousing 90. Below the housing 90 the sleeve 89 continues downward andis vertically slidably mounted in a bearing 93 on a casing 94 secured tothe frame work 1 of the machine.

ln order that the downward action of the can lifter 84 will be of asteadv and cushioned character there is provided a coiled spring 94secured at its upper end to the can lifter casing 94 and its lower endto a pin 95 fixed in the lower part of sleeve 89. Journaled on the endsof a crosspin 96 xed in a bearing 95 on the lower part of the sleeve 89and below the housing 90 are a pair of links 96 which extend downwardlyand to which are pivoted at 97the arms of a can lifting yoke 99 at thefront end of a lever 100. rllhis lever extends rearwardly and ispivotally mounted at its middle by means ofan eccentric pivot pin 101 onthe casing 94 of the machine. lt is necessary that the can lifter havean accurately timed extent of movement to take the unclosed cans fromand redeliver the closed cans to the feed chain, and there is provided ameans of adjustment by the crosspin 96. The ends of this pin on whichthe links 96 are journaled are eccentric to its central portion which tsand can be turned in the bearing 95', and the height of the lifter canbe regulated by turning said crosspin. The latter is held when adjustedby a tangential clamping screw 98.

The innermost end of the lever is provided with a roller 102 whichengages the track of a can lifter cam 103 fixed upon the vertical camshaft 59 of the machine and` which through the medium of lever 100,links 96 and sleeve 89 actuates the can lifter head 85.l The cam 103 isso shaped and timed in rotation as to move the can lifter 84 up-` wardsthe instant that a can has been deposited upon the head S5 of the sameby the conveyor chain 52, in line with the seaming head.

lThe forward and can engaging edge of the can feed lingers 53 isvertical near the base thereof as indicated at 104,- and suitablyinclined rearwardly at the top as at 105. The can arrives upon thelifter and the latter begins to risel before the can is quite centeredon the lifter but while the can is rising the vertical part of thefinger continues to advance the can to centered position, and thereleaves it when the can rises to the part 105, which inclines rearwardlyto compensate or partly compensate for the continued advance of thechain. This construction gives a practical length of can engaging fingerfor certainty of operation, and the disengagement of the can is not soabrupt as to spill any of its contents, and its rate of advance isgradually diminished as it nears and arrives at the point where it is tostop on the lifter.

The top surface of the can lifter head 85 is provided with two lifterplates 106 and 107 having longitudinally knurled surfaces 108 (Fig.rlhese plates overhang the conveyer chain slot 86 in the said head 85leaving a space 109 between them wide enough to permit the passage ofthe fingers of the feed chain 52 through the same. The knurled surfaces10S of these plates tend to prevent any twisting or rotary motion of thecan body upon the can lifter head 85 while the can is being` operated onby the rotary seaming head. The lifter head is provided with means forgradually, or without abruptness causing the can to come to rest on saidhead as it is lifted away from the finger 53. One suitable means forthis purpose is the following: Pivotally mounted at one end as indicatedby a pin 110 upon the forward vedge of the front lifter plate 106 is aguide bar 111. This bar is yieldingly held in an inward position towardsthe can by a leaf spring 112 secured 'to an arm 113 pivoted to the frontof the lifter head 85 as at 114. The arm 113 and its spring 112 arenormally held fast in an engaged position with the guide bar 111 by acap screw 115 which passes through a slot 116 in the arm 113 and isthreaded into the lifter head 85. The pivot of the guide bar 111consists vin a downwardly projecting pin 110 which terminates in a head118. This pin engages a slot 119 in the knurled base plate 106 and isprevented from upward displacement by the head 118 engaging the underside of the said plate. T he outer and swinging end of the guide bar 111is also prevented from any upward movement by a similar headed pin 120which travels in an arcuate slot 121 in the plate 106 concentric withthe pivot of the guide bar. It will be apparent that the guide bar 111may be removed by simply loosening the cap screw 115, allowing the arm113 and spring 112 to swing downward and out of engagement with thepivoted guide bar 111'. The guide bar may then be swung forwarddisengaging the pin 120 from the arcuate slot 121, permitting the bar111 and pivot pin 110 to be disengaged from the pivot slot 119` Theinner wall of the guide bar 111 is under cut as at 122 so as to engagethe lower fiange or seam of a can to prevent any upward movement of thecan relative to the can lifter 811. Rigidly secured to the rear of thehead 85 is a second fixed guide bar 123 having a similar under cutrecess 124- which coacts with the recess 122 in holding the can down onthe plates 106, 107. As the can is carried onto the can lifter 841 bythe conveyer chain 52, it forces the pivoted guide bar 111 outwardlyagainst the pressure of the spring 112 and is thus held firmly, al.`though not too tightly, upon the can lifter head 85, and graduallybrought to rest by frictional resistance without an abrupt stop. The canlifter head having previously commenced to rise, raises the can througha centering device to the seaining head, receiving in such movement anautomatically fed can end which is seamed in place by the seaming head,which will be later described.

The can now being closed the can lifter 841 descends lowering the closedcan from the seaming head again to the main feed table 21. As the canlifter is descending, but before the same has completed its stroke, thecan is again engaged by a longer can eX- tracting finger 125 Xed on theconveyor chain 52, and which projects upwardly through the space 109between the base plates 106 and 107 and conveys the closed can off thelifter head and along the track to the delivering point on the table 21lThese extracting fingers 125 are comparatively straight and are locatedupon the conveyor chain 52 in the spaces between the curved can feedingfingers 53. It will be noticed that the cans are so spaced, and theirmovement so timed before they are delivered onto the main feed table 21,that they are caught only by the conveying fingers 53, allowing the canextracting lingers 125 to pass the receiving point without having a candelivered before them. A can having been carried onto the lifter 841 bythe conveying' lingers 53 is raised, seamed and lowered in time to becaught by the extracting finger immediately succeeding the conveyingfinger that delivered the can to the seeming station. By thisarrangement there is always a space awaiting to receive a seamed can andthe operation of the machine is very rapid.

The filled cans having been seamed and closed and returned to the maintable 21 are conveyed along the table by the extracting fingers 125between guide rails 126 and ico` 127 to the point where they are desiredto be delivered. There are several such points on the table where theclosed cans may be so delivered. These points may be determinedl by thearrangement of the guide extensions or can-switching rails 123. lTheymay be conveyed along the table and delivered at the front of themachine at a point indicated by the letter A or they may be delivered atthe end of the table at B. It is still possible that the location of themachine will make it desirable to have the cans continue around thetable between the guide rails 129 and 130 and be delivered from themachine at the rear of the same at the point indicated at C. Thesevarious deliveries are effected to obtain the most convenient and rapidworking organization of the machinery of the plant, by swinging. aroundand refastening the switch extensions 123, as indicated in dotted linesin Fig. 4. To adjust the machine for operating on another size(diameter) of cans the changes include preferably the removal of therails 19, 20,/ 54, 126, 127

and switch extensions 123, substituting other' rails and extensionswhich are or may be secured at the same points but which are shaped tochange the width of the channels in which the cans are moved andIguided.

The frame 1 of the machine, extends upwardly and has vertically slidablymounted upon the front Aface thereof a seaming head casing` 131. Thiscasing overliangs the table 21 and is provided with vertical flanges 132adjacent the frame 1 which are re tained against the same byverticalguide members 133 adjustably secured to the frame 1 by lockbolts 134, which normally bindl the casing 131 against the frame 1 andhold the saine securely against vertical displacement. Secured to thetop of the casing 131 is a vertical adjusting non-rotary shaft 135 whichextends upwardly along the face of the frame 1 and is supported at itsupper end by the hub of an adjusting` hand wheel 136 which is threadedonto the said shaft and rests upon a bifurcated and outwardlyprojecting` supporting lug 137 Xed at the top of the casing 377. When itbecomes necessary to raise or lower the seaming head to accommodate cansof a differ ent size (height)` the locking. bolts 134 are loosenedpermitting the casing 131 to be raised or lowered as the case may be bythe hand adjusting wheel 136 carrying with it the seaming head and itsactuatinggearing. The eXact amount of adjustment may be read on agraduated scale 139 (Fig. 1) secured to the guide 133 at the side of theeasing 131, which is traversed by an indi- B secured to the side of thecasing the casing is adjusted to the 0 e the tabl 21, the lock 131 isprovided with a bracket 138 preferably integral therewith, which extendsrearwardly and is slidably mounted upon the cam shaft 59.

l/Vithin' the casing 131 is supported a ro tary two-operation seaminghead indicated a whole at 37. The seaming head con sists of a body 14()in the form of a disk having a diametrilcal guideway 141 therein. Formedintegral with the disk, and projecting below its face, are two parallelflanges 142, which form the walls of the guideway 141. The disk also hasupwardly extending iianges 142', and' integral therewith a centrallylocated vlertical hollow spindle 143, upon which is slidably mounted asleeve 144 to which are secured two diametrically opposite first andsecond operation roller actuating cams 145 and 145, which will behereinafter described. E

tending vertically within the spindle 143 a hollow chuck spindle 147carrying at' its lower end and below the seaming' head body 140 an upperchuck member 148 which cooperates with the can lifter 34 to hold the canXed during the seaming operation. Located within the chuck spindle 147is a vertical reciprocating knock out rod consisting of an upper section149 and a lower section The 150 connected by a scarf joint 151. lowersection 150 is pro-vided at its lower extremity with a' can engaging pad152 which nest-s within a recess 153l in the chuck member 148 while acan is being seamedv but which descends and assists in extracting thecan from the seaming head when the seam v is completed. The sections areheld inter"-v locked by the surrounding spindle 147, and by sliding therod down to bring the joint 151 below its lower end another padl 152 maybe substituted of different size or one which is damaged may bereplaced.

The lower parts of the two flanges 142 are horizontally channeled as at154 to form lwith a comparatively deep fiange-turning peripheral groove160 and the secondl operation roll with a comparatively shallowflange-flattening and closing groove 160.

A located ,cages 1 These rolls are axially mounted and jour-v `naledupon roller pins 161 between which and 1the searnin ro 1ers ai battitilevers 172 and 172 the lower ends o friction rollers 163. The rollerpins 161 are held in place by tangential locking pins which extendhorizontally through t seaining roll slides 156 and 156 and enga` crecesses 165 in the roller pins, thus retaining` the saine in place. Thebrackets 15J and 15S are protected troni Wear oirasioned by the seainingrolls by @lates 165 interposed between the seeming rolls and the saidbrackets. interposed between 'the seaining` rolls and the slides 'l5/and 156" are hardened steel Washer plates 167i" (Fig. 2G). These platestalle practically all or the wear caused by the rolls and protect theslides and brackets which, for lthe object ol reducing Weight, areconstructed or suitable metal and inay be replaced when desired.

lt is necessary that these rolls be suscej3- tible to a very accurateand fine adjustment in order that perfect hermetic seains in ay beproduced. To facilitate this, there are provided in the upoer Ylaces ofthe seeming roll slides, channels 168 with under cut Walls adapted toreceive adjusting; slides 170 and 170 Which are slidable radially Withinthe said channels. rlhese slides have in their upper surfaces, lateralnotches or recesses 171 adapted to receive the lower ends of levers 172and 172', which are actuated by the cams 14:5, 1115 as Will be describedThreaded into the ends oi the adjusting' slides are horizontal adjustingscrews 173 the heads 1711 of' Which project below the lower surfaces ofthe adjusting` slides and engage in notches 175 in the upper `fz..ces orthe seaining roll slides 156 and 156, thus pre venting longitudinaldisplacement oit the adjustin` slides in relation to the said seainingroll slides unless said screws be turned. Threaded into and projecting'vertically troni the searning roll slides are can screws 176 ivhichextend through slots adjusting; slides 170 and 170 and `which lochtogether the adjusting slides and the seaniing roll slides in theirdesired and adjusted positions relative to each other. ln adjustH ingthe scanning` rolls 'the adjlistingslides may be considered asstationary, being' held so by the cani actuated lev rs 172 and 172engaging; the lateral notches 17 rllhe cao screws 176 being loosened,the horizontal adjusting screws 173 are turned, vtheir heads 1711engaging` the notches in the searning roll slides, and forcing` theslides with the seaniing rolls either inwardly or outwardly as the casemay be until the desired see-in obtained. The set screws 176 are thentightcned, locking the slides together in their adjusted positions.

Between the upper flanges 1112 oif the 'seaniing disk, randsubstantially above 'the seaming roll slides, are nivotally mounted, bymeans or pivot pins 178 and 178', the said first and second operationkcarnectuatcd r which sses 171 in the ad- The pivot pins prevented "reinrotating by lugs 179 which entlie sides or the lfhese pins are 'f leatsprings V;L to the flanges eniiti enen-Win11' rlhe pivot pins providedwith lubrication Y s oil these ers 18o and 186 VWhich rains 14:5 and141-5 carried 1 on the seainng head spinunifier ends ci the levers are:ovided with outwardly projecting n n.feigl'i ted l` 187 and 187 ichserre to soin; in countericing the r; f e seaniingjr rolls "he carne1115 and y out oit onerative the recidinn the danger of ,s i., othewiseresult liroin a or Vvviols-nt outward niovenient oi 'oils and their slity or double seaininr;` is acconivo operations. The first opera curl onthe end dange or endend can body liano'es,

j ly lniislied se i, and this is periorined j deep groove 1GO in the159. lhe second operathe seam commenced by 'en out the saine and iimpervious to air, which oa; .tively shallow or lla in the secondoperation nrst o aeration io.' tion is to i u gmt .m il Alle im roll lis quite ifi-ecn vk'ly desirable to throw le second oper .tion roll outoit ogerative 'on without disturbing; its adjustment f' the slide 170 inrelation to the seeming;

or the equil il' i '1i n o fi the head bodily rer no it trein the head.For n. in; l

vne rst operation roll senin :torined should not be iirst .t wn, it isimperative it orten neces d stul'lls that the Je formed, and betere airtight by the action ojeration roll, to remove the closing machine 'toan. exhaust Y and contents are heated tor 'the neces ary le "1- ct ti ieunder a suitable temper alture, in order that certain gases liable tocause swell or spring ieads or the cans be exhausted through thecomparative

